Ever-Power has been creating and manufacturing reliable, high performance gearboxes for over 20 years. RW Series miniature right angle gearboxes provide high torque ideals with suprisingly low backlash in incredibly compact frames. Three gear ratios are available to meet the needs of your unique application.
Order the Ever-Power RW Series worm gear box assembly you will need, demand a quote, or contact us for more information.
Worm Wheel Miniature Gearboxes
Our RW series miniature worm equipment box assembly could be little, but it’s tough enough to handle demanding power transfer applications. Constructed with machined aluminum housings and hardened metal input and result gears, they’ll deliver a long time of reliable performance.
Obtainable in three standard output ratios and with two output shaft diameter options, it’s simple to find the Ever-Power right miniature gearbox for your needs. Each RW model worm equipment package assembly provides proportionally high torque values (1.4 NM at 3,000 RPM) with very low backlash (optimum 2° backlash).
For full specs and Dimensional Parametric Search, see individual product listings.
The Ever-Power Advantage
High efficiency miniature correct angle gearbox (up to 90% at 1,000 RPM)
Three equipment ratios available: 5:1, 10:1, and 20:1
Extremely compact footprint: 1.5” x 1.5” x 1.08”
12.5 inch-lbs. output torque
Very low backlash (2° backlash optimum)
90° output angle
Maximum input speed: 3,000 RPM
Machined aluminum housing with hardened metal gears and oil-impregnated bronze bearings
Permanently lubricated
Made in the China
Mechanical drives take supplied torque and could increase or reduce that torque based on application. Also rate is increased or decreased compared index G – GEAR BOXES – on blue – smallto the speed decrease ratio. Ever-Power has a full type of gearboxes and swiftness reducers, and the parts had a need to build them, in an array of standard ratios and shaft choices along with custom designs.
Helical, bevel, and miter equipment boxes offer the options of velocity reducers or swiftness increasers, and could be driven in either path. All Ever-Power worm equipment speed reducers and right angle drives are produced for high performance in a large spectrum of applications. Typically worm gear boxes are not used as rate increasers. The cases are molded glass-filled material making them extremely durable and resistant to corrosive conditions. They are offered in an array of ratios and are built with right hand or left hand worm gears. The output shafts could be solid or hollow, and load capacity is unaffected by path and rotation.
Worm gear quickness reducers are comprised of a screw (the worm) that drives a wheel (helical gear) or single enveloping wheel and so are used in mechanical applications ranging from conveyors to workout devices to robots.
Geneva mechanisms and assemblies are usually used to transform continuous rotary motion into intermittent rotary motion. The rotating drive wheel has a pin that reaches right into a slot of the powered wheel advancing it by one step and a blocking disc that locks the powered wheel in position between steps.
Compact design
Compact design is among the key words of the standard gearboxes of the BJ-Series. Further optimisation may be accomplished by using adapted gearboxes or unique gearboxes.
Low noise
Our worm gearboxes and actuators are extremely quiet. This is because of the very smooth operating of the worm gear combined with the use of cast iron and high precision on element manufacturing and assembly. In connection with our precision gearboxes, we consider extra care of any sound that can be interpreted as a murmur from the apparatus. Therefore the general noise degree of our gearbox is reduced to a complete minimum.
Angle gearboxes
On the worm gearbox the input shaft and output shaft are perpendicular to each other. This frequently proves to be a decisive advantage producing the incorporation of the gearbox significantly simpler and more compact.The worm gearbox is an angle gear. This is often an edge for incorporation into constructions.
Solid bearings in solid housing
The output shaft of the BJ worm gearbox is quite firmly embedded in the apparatus house and is well suited for direct suspension for wheels, movable arms and other parts rather than having to build a separate suspension.
Self locking
For larger equipment ratios,EP-Gear’s worm gearboxes will provide a self-locking impact, which in many circumstances can be utilized as brake or as extra protection. Also spindle gearboxes with a trapezoidal spindle are self-locking, making them ideal for an array of solutions.
Structural Features
The worm-gear reducer is made up of three main parts: housing, worm-gear and wheel.
The carcasses are constructed with GG-25 cast-iron, and so are available for all sorts of gear-reducer. This make sure they are perform effectively under stressed circumstances, vibrations or any type of setback that cannot be avoided through the assembly
The worm-gear is constructed of hardened and quench-hardened steel, with ground- on teeth sides, and the crowns made of DIN (GZ-CuSn 12 Ni2) centricast bronze, melted on steel. Due to the mechanical work of the two parts having high quality, excellent overall performance and low sound levels have been achived.
The output shaft is hollow, though it is possible to adapt a solid shaft.
The oil seals manufactured from NITRILE BUTADIENE, according to DIN 3760, top quality bearings, an EPOXY- impregnated finish ( 2 components), and grey-coloured SINGLE LAYER ENAMEL finish ( 2 components) ( RAL 7672), supply the best gear reducer available.
Size 63
In the size 62 of the MF series, worm-gear reducers, the output hollow shaft of diameter 30 has been included, that substitutes to the output hollow shaft with diameter 25, from size 62. This variant provides like reference size 63 and is born like response to the request of our costumers since, upon mounting higher bearings in the output, bears higher axial loads that its analogous one in the MF-62 series. The others of technical feature are identical to the its analogous in the size 62.
Assembly Position
In order to set up a gear reducer and to make it happen efficiently, the next instructions must be taken into account:
It must be fixed on a set surface to avoid either vibrations or tensions.
If undistributed loads or continued start-ups are foreseen, it is suggested to insert compensating couplings, connectors, torque limiters etc…
If the gear reducer had to be painted, the essential oil seals should be covered to prevent them from drying and losing their seal.
The device work of the fittings set up in the output shafts require an ISO H7 or h6 margin for the hollow shaft.
Backdriving
It is smart to focus on this element when the apparatus reducer result shaft is driven rather than being a driver. Considering that one of the top features of this worm-gear reducer may be the fact that can’t be axle-driven by the result shaft (irreversibility), it really is almost difficult to meet up total irreversibility conditions, because of external factors such as vibrations, etc. That is why, when the application needs total irreversibility, it really is advisable to make use of exterior brakes with enough power to avoid slipping.
It could be said that the circumstances under which irreversibility can happen are the following:
• Efficiency < 0,55 (find table of technical features).
Maintenance
This sort of gear reducer is provided with a permanent lubrication, so that it does not need any kind of maintenance.
Lubrication
The lubrication of the gear reducer type is constant and comes as standard, with top quality refined oil which has antirust and antiwear products with Fe, Cu and alloy protectors that has quality level CLP DIN 51517-3, FGZ level 12, AP GL-4, US 224, AGMA 250-04; because of this its maintenance is not needed.

High reduction gear
Worm and wheel equipment pairings provide large velocity decrease ratios with only 1 equipment pairing in a more compact space when compared with other types of gears. We offer up to maximum ratio of 100:1 with this products. Another benefit of the Worm and Wheel gear pairings is the low level noise they produce. Some disadvantages are the general low performance and the actual fact that they generate heat.

Benefit of EP’s Worm Gears – “Frosty rolled Worm Gears”
1) The hardness of the helicoid surface area has been achieved by work hardening when the chilly rolling was performed, providing Worm gears with better mechanical properties than machined worms due to reality that the metallic fibrous framework is not cut.

2) The top hardness after cold rolling is increased by 1.2 to 1 1.3 times in comparison to the hardness of the original material, and the hardness of the helicoid surface area increases to around HB240 to 260.

3) Chilly rolled worms are suitable for miniature gear applications since this could be rotated smoothly without damaging the worm wheels crafted from POM or additional soft materials.

4) Because of the implementation of the cold rolling method, the helicoid surface area of EP-Worm (M0.5 to 2.0) comes out with a mirror like complete. Thus, EP-Precision Cold Rolled Worms give a smooth operation and long term durability.

Worm gears are constructed of a worm and a equipment (sometimes referred to as a worm wheel), with nonparallel, non-intersecting shafts oriented 90 degrees to one another. The worm can be analogous to a screw with a V-type thread, and the apparatus is certainly analogous to a spur gear. The worm is typically the traveling component, with the worm’s thread advancing one’s teeth of the gear.

Such as a ball screw, the worm in a worm gear may have a single start or multiple starts – and therefore there are multiple threads, or helicies, on the worm. For a single-start worm, each complete change (360 degrees) of the worm increases the equipment by one tooth. So a gear with 24 teeth provides a gear reduction of 24:1. For a multi-begin worm, the gear reduction equals the number of teeth on the gear, divided by the number of starts on the worm. (This is not the same as most other types of gears, where the gear reduction is definitely a function of the diameters of the two components.)
The meshing of the worm and the gear is a mixture of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding actions causes friction and warmth, which limits the performance of worm gears to 30 to 50 percent. To be able to minimize friction (and therefore, warmth), the worm and equipment are made from dissimilar metals – for example, the worm could be produced of hardened steel and the gear made of bronze or aluminum.

Although the sliding contact reduces efficiency, it provides extremely quiet operation. (The usage of dissimilar metals for the worm and gear also plays a part in quiet operation.) This makes worm gears ideal for use where noise should be minimized, such as in elevators. Furthermore, the use of a softer material for the gear means that it could absorb shock loads, like those skilled in heavy equipment or crushing devices.

The primary advantage of worm gears is their ability to provide high reduction ratios and correspondingly high torque multiplication. They may also be used as rate reducers in low- to moderate-quickness applications. And, because their decrease ratio is based on the amount of gear teeth alone, they are smaller sized than other types of gears. Like fine-pitch business lead screws, worm gears are usually self-locking, which makes them perfect for hoisting and lifting applications.

Worms & Worm Gears
EP Gear’s worms and worm gears provide an effective answer for power transmitting applications requiring high-ratio swiftness reduction in a restricted space using correct angle (90°), nonintersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest type of gearing.

Because the efficiency of a worm equipment drive depends on the business lead angle and amount of begins on the worm – and because increased effectiveness is always a goal, the ratio ought to be kept as low as possible. To run correctly, worms and worm gears utilized together will need to have the same diametral pitch and threads.

Our complete type of worms and worm gears could be ordered through the EP Equipment Guaranteed Same Time Shipment Program for the quickest delivery possible.
Product Features
90°, nonintersecting shaft applications answer highly specialized power transmission needs.
Our worm gears provide smoothest, quietest form of gearing.
They provide high-ratio speed decrease in minimal spaces.
Their efficiency is easily increased by decreasing ratios.
With some ratios, there is level of resistance to back driving.
Obtainable from 48 DP to 3 DP
Stocked as single, double and quad start configurations